Thanatophoric Dysplasia, Type I, also known as thanatophoric dysplasia, is related to platyspondylic lethal skeletal dysplasia, torrance type and achondrogenesis. An important gene associated with Thanatophoric Dysplasia, Type I is FGFR3 (Fibroblast Growth Factor Receptor 3), and among its related pathways/superpathways are Infectious disease and ERK Signaling. Affiliated tissues include temporal lobe and bone, and related phenotypes are macrocephaly and hypotonia